From 26b54e61de08df573e7b4273bcba91e6c1a075a9 Mon Sep 17 00:00:00 2001
From: Bramus <bramus@bram.us>
Date: Tue, 10 Sep 2024 21:47:45 +0200
Subject: [PATCH] Make sure firefox_id is set before reading the length from it

Fixes #9
---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index aa5eecb..ee8a597 100755
--- a/index.js
+++ b/index.js
@@ -452,7 +452,7 @@ const firstArgument = ({ reply }) => {
     let newKeys = [];
     const { firefox_id, keywords } = caniuse.data[item];
 
-    if (firefox_id.length > 0) {
+    if (firefox_id && firefox_id.length > 0) {
       newKeys.push(firefox_id);
     }